Cooling pump assembly

A cooling pump assembly comprising:

• a cooling pump having
• a main casing having
• a first end and a second end opposite to the first end of the main casing;
• a chamber disposed at the second end of the main casing;
• an axial hole extending from the first end of the main casing and fluidly communicating with the chamber;
• a crescent being curved, disposed inside the chamber, and surrounding the axial hole;
• and
• a communicating hole fluidly communicating with the axial hole and the chamber;
• a supplementary casing connected to the main casing, closing the chamber, and having
• a first side and a second side opposite to the first side of the supplementary casing;
• a leading-in indent disposed at the first side of the supplementary casing;
• a leading-out indent disposed at the first side of the supplementary casing;
• at least one leading-in hole, each of the at least one leading-in hole extending from a bottom of the leading-in indent and extending through the second side of the supplementary casing;
• and
• a leading-out hole extending from a bottom of the leading-out indent and extending through the second side of the supplementary casing;
• an inner gear rotatably disposed inside the chamber and being coaxial with the axial hole;
• an outer gear rotatably disposed inside the chamber, enclosing the inner gear and the crescent, and engaging with the inner gear;
• the outer gear and the inner gear being eccentric;
• a mount having
• a first side and a second side opposite to the first side of the mount;
• a recess disposed at the first side of the mount, receiving the supplementary casing, and fluidly communicating with the at least one leading-in hole and the leading-out hole;
• and
• a discharging hole extending from a bottom of the recess and fluidly communicating with an exterior of the mount;
• a shaft rotatably mounted in the axial hole, engaging with the inner gear, and having an input end and an output end opposite to the input end of the shaft;
• a channel extending from the input end of the shaft toward the output end of the shaft;
• and
• multiple guiding holes radially extending from a circumference of the shaft and fluidly communicating with the channel;
• and
• a driving set having
• a driving unit connected to the shaft, inserted in the axial hole, and having
• a first end and a second end opposite to the first end of the driving unit;
• a central hole extending to the first end and the second end of the driving unit, and fluidly communicating with the axial hole;
• and
• the driving unit mounted on and around the shaft by the central hole, and the central hole fluidly communicating with the channel via the multiple guiding holes.